<template>
    <div>
        <el-form :rules="rules" ref="loginForm" :model="loginForm" class="loginContainer">
            <h3 class="loginTitle">系统登录</h3>

            <el-form-item prop="username">
                <el-input type="text" v-model="loginForm.username" auto-complete="false"
                          placeholder="请输入用户名"></el-input>
            </el-form-item>

            <el-form-item prop="password">
                <el-input type="password" v-model="loginForm.password" auto-complete="false"
                          placeholder="请输入密码"></el-input>
            </el-form-item>

            <el-form-item prop="code">
                <el-input size="normal" type="text" v-model="loginForm.code" auto-complete="false"
                          placeholder="点击图片更换验证码" style="width:250px;margin-right: 5px">
                </el-input>
                <img :src="captchaUrl" @click="updateCaptcha">
            </el-form-item>

            <el-checkbox class="loginRemember" v-model="checked">记住我</el-checkbox>

            <el-button type="primary" style="width: 100%" @click="submitLogin">登录</el-button>
        </el-form>
    </div>
</template>

<script>

    export default {
        name: "Login",
        data(){
            return{
                loginForm:{
                    username:'',
                    password:'',
                    code:''
                },
                //验证图片的地址
                captchaUrl:'/captcha?time='+new Date(),
                checked:true,
                rules:{
                    username:[{required:true,message:'请输入用户名',trigger:'blur'}],
                    password:[{required:true,message:'请输入密码',trigger:'blur'}],
                    code:[{required:true,message:'请输入验证码',trigger:'blur'}],
                }

            }
        },
        methods:{
            updateCaptcha(){
                this.captchaUrl='/captcha?time='+new Date();
            },
            submitLogin(){
                this.$refs.loginForm.validate(valid=>{
                    if(valid){
                        this.postRequest('/login',this.loginForm).then(resp=>{
                            //alert(JSON.stringify(resp));
                            //获取token 令牌 存储到sessionStorage
                            if(resp){
                                const tokenStr=resp.obj.tokenHead+resp.obj.token;
                                console.log(tokenStr)
                                window.sessionStorage.setItem("tokenStr",tokenStr);

                                //获取需要重定向地址
                               let path=  this.$route.query.redirect;
                                //跳转到主页
                               // this.$router.replace("/home");
                                this.$router.replace( (path=='/'||path==undefined)?"/home":path);

                            }else {
                                this.$router.push("/")
                            }

                        })
                    }else{
                        Message.error("请填写所有字段!");
                        return false;
                    }
                })
            }
        }
    }
</script>

<style scoped>
    .loginContainer {
        border-radius: 15px;
        background-clip: padding-box;
        margin: 180px auto;
        width: 350px;
        padding: 15px 35px 15px 35px;
        background: #fff;
        border: 1px solid #eaeaea;
        box-shadow: 0 0 25px #cac6c6;
    }
    .loginTitle {
        margin: 0px auto 40px auto;
        text-align: center;
        color: #505458;
    }

    .loginRemember {
        text-align: left;
        margin: 0px 0px 15px 0px;
    }

    .el-form-item__content{
        display: flex;
        align-items: center;
    }
</style>
